-48.5% is the change from 633 to 326
Calculation steps:
[( 326 - 633 ) ÷ 633] x 100 = -48.5%
Formula
Percentage change = [(326 - 633) / 633] x 100
Subtract the new number by the original number
326 - 633 = -307
-307 ÷ 633 = -0.4849921011058452
-0.4849921011058452 x 100 = -48.5%